Method of alloying copper and iron



Patented Oct. 7, 1952 METHOD OF ALLOYING COPPER AND IRON Christopher H. Audette, Minneapolis, Minn.

No Drawing. Application October 11, 1950, Serial No. 189,680

2 Claims.

My invention relates to the method of alloying high carbon steel and copper and the alloy formed by this novel method. Heretofore, it has been considered impossible to obtain a union between copper and any material quantity of high carbon steel. However, I have found that, by the use of copper sulphate in the manner hereinafter described, high carbon steel and copper may be caused to alloy in widely varying proportions.

For the best results, I have found that six parts of high carbon steel, that is, steel with preferably over 60/100 (.60) per cent carbon content, is heated to 2860 degrees Fahrenheit, whereby to liquify the same. Ten parts of copper (Cu) and three parts of copper sulphate (01180;) are, together, brought to a melting point in a separate crucible. The temperature of the melted steel is then reduced to approximately 2540 degrees Fahrenheit so as not to destroy the properties of the copper. The liquid copper and copper sulphate are then added to the liquid steel at said temperature of 2540 degrees Fahrenheit, and all three contents are thoroughly stirred with a carbon element or the like prior to pouring.

As above indicated, the relative quantities of copper and high carbon steel may be varied considerably. However, it has been found that, for approximately every sixteen parts of combined copper and high carbon steel, irrespective of the proportions thereof, approximately three parts of copper sulphate are required to efiect a proper carbon steel or copper. Such a metal obviously has numerous uses.

While I have above described the method which I presently find to be most satisfactory, it should be obvious that the range of ingredients used may be varied considerably without departure from the spirit and scope of the invention as defined in the appended claims.

What I claim is: a v

1. The method of alloying copper and steel, which comprises heating said steel to approximately 2860 degrees Fahrenheit to liquify same, adding to said liquified steel said copper and a relatively small quantity of copper sulphate, and agitating said ingredients While all three are in a liquid state.

2. The method defined in claim 1 in which the copper and high carbon steel together make up approximately sixteen parts and the copper sulphate approximately three parts.

CHRISTOPHER I-I. AUDE'I'IE.

REFERENCES CITED The following references are of record in the file of this patent:

FOREIGN PATENTS Country Date Great Britain of 1914 OTHER REFERENCES Number 

1. THE METHOD OF ALLOYING COPPER A ND STEEL, WHICH COMPRISES HEATING SAID STEEL TO APPROXIMATELY 2860 DEGREES FAHRENHEIT TO LIQUIFY SAME, ADDING TO SAID LIQUIFIED STEEL SAID COPPER AND A RELATIVELY SMALL QUANTITY OF COPPER SULPHATE, AND AGITATING SAID INGREDIENTS WHILE ALL THREE ARE IN A LIQUID STATE. 